发明名称 METHOD FOR THE OPERATION OF A TRANSMISSION DEVICE IN A VEHICLE DRIVE TRAIN WHEN A REQUEST IS MADE TO CHANGE GEARS
摘要 A method of operating a transmission of a vehicle drive-train when a gearshift from a current gear toward a target gear has been requested. The transmission having frictional shifting elements and at least one interlocking shifting element. If an actuating electrical current, equivalent to a closed operating condition of the frictional shifting element to be engaged, and an actuating electrical current, equivalent to an open operating condition of the interlocking shifting element to be disengaged, are determined while, at the same time, a closed operating condition of the interlocking shifting element to be disengaged is detected by a sensor, a fault is recognized. If the fault is recognized during a predefined test period, one or more selected shifting elements are disengaged and a force flow in the transmission is interrupted. Alternatively, by disengaging the frictional shifting element to be engaged, the current gear is engaged in the transmission.
申请公布号 US2013268168(A1) 申请公布日期 2013.10.10
申请号 US201113991693 申请日期 2011.11.08
申请人 ARNOLD JORG;HERBETH VALENTINE;MIHATSCH GEORG;ZF FRIEDRICHSHAFEN AG 发明人 ARNOLD JORG;HERBETH VALENTINE;MIHATSCH GEORG
分类号 F16H61/12 主分类号 F16H61/12
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